Thread: I have some java question

i want to if Input size = 5 or Input size = 8
output screen need like this
Input size : 5
#
##
#.#
#..#
#####
or
Input size : 8
#
##
#.#
#..#
#...#
#....#
#.....#
########
but I don’t know how to write this code

package q4;
 
import java.util.Scanner;
public class Q4 {
 
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Input size: ");
        int t = input.nextInt();
 
        for (int n = 1; n <= t ; n++)
            line(n);
    }
    static void line(int n ) {
        String s = "#";
        for (int a = 2; a < n ; a++) 
            s += ".";
            s += "#";
     System.out.println(s);       
    }
}

See Code in this Example

import java.util.Scanner;
public class Q4 {
 
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Input size: ");
        int t = input.nextInt();
 
        for (int n = 1; n < t; n++) {
            line(n);
        }
 
        lineLast(t);
    }
 
    static void line(int n) {
        String s = "#";
 
        if (n == 2) {
            s += "#";
        }
 
        if (n > 2) {
            for (int a = 2; a < n; a++) {
                s += ".";
            }
            s += "#";
        }
 
        System.out.println(s);
    }
 
 
    static void lineLast(int t) {
        String s = "";
        for (int a = 1; a <= t; a++) {
            s += "#";
        }
        System.out.println(s);
    }
 
}

Scanner class in java has some methods: next(), nextInt(), nextLong(), nextLine() etc , but no nextChar(). Here is an example to take a next char from input by java.util.Scanner. For more about nextChar , click URL

Thanks for asking, so we all can learn it too)